Anti-dazzle lighting lamp
Technical Field
The invention relates to the technical field of illumination, in particular to an anti-dazzle illuminating lamp.
Background
In the living of the house, the bedroom is a private space which allows people to relax, rest and have a keen care, so that certain requirements are imposed on the environment of the bedroom, particularly the light environment in the bedroom, and bedside lamps are an essential part for building the environment suitable for the bedroom.
Although bedside lamps have clear requirements for uniformity of illuminance, illuminance distribution, and the like, most of the bedside lamps are designed to have severe direct glare in order to meet the uniformity of illuminance, the glare causes visual discomfort and reduces visibility of objects, a bright feeling that human eyes cannot adapt to is generated in a visual field, and disgust, discomfort or even loss of visibility may be caused.
Disclosure of Invention
The invention aims to: the anti-dazzle lighting lamp is provided for solving the problem that the bedside lamp has serious direct glare.
In order to achieve the above object, the present invention provides an anti-glare lighting fixture, which includes a housing and a light emitting component disposed in the housing, wherein the housing has a light exit hole, a mounting plate is disposed in the housing, the light emitting component is mounted on the mounting plate, the light emitting component includes a light source plate, a polarizing lens and a housing, the housing is fixedly connected to the mounting plate, the housing is a black housing, the light source plate is disposed on the housing, the polarizing lens is fixedly connected to the light source plate, an included angle between one side of the light source plate facing the light exit hole and a horizontal plane is 45 degrees, the polarizing lens includes a light exit surface and a light entrance cavity, the light entrance cavity is a concave cavity, two ends of the light exit surface are respectively connected to the light entrance cavity through reflecting surfaces, the light entrance cavity is located in a space surrounded by the light exit surface and the two reflecting surfaces, and light emitted by the light source plate is refracted by the light-entering cavity, deflected by the light-emitting surface and then emitted from the light-emitting hole.
As a further description of the above technical solution:
the light inlet cavity comprises a first incident surface, a second incident surface and a third incident surface, the first incident surface is located at one end of a light source on the light source board, the second incident surface is located at the other end of the light source on the light source board, and the third incident surface is located on one side of the light source on the light source board.
As a further description of the above technical solution:
the first incidence surface, the second incidence surface and the third incidence surface are all arc-shaped curved surfaces with variable curvatures.
As a further description of the above technical solution:
the light emitting surface comprises a first emitting surface and a second emitting surface, and the first emitting surface and the second emitting surface are arc-shaped curved surfaces with variable curvatures.
As a further description of the above technical solution:
the surface of the shell is provided with a plurality of saw teeth.
As a further description of the above technical solution:
the included angle of the sawteeth is 60-90 degrees.
As a further description of the above technical solution:
the material of the lens is transparent PC or transparent PMMA.
As a further description of the above technical solution:
a radiator is further arranged in the shell.
In summary, due to the adoption of the technical scheme, the invention has the beneficial effects that:
1. in the invention, the light-emitting hole is small, and the size of the light-emitting hole on the shell is 25mm by 9 mm; and (3) reducing the height of the light outlet hole: the height of the opening on the shell from the bottom surface of the shell is 190mm, the normal sitting posture is 1.2 m, the conventional height of a desk is 0.75 m, and the height of a light-emitting surface of a lamp placed on the desk is about 0.9 m, so that the height of the light-emitting hole is reduced, and the anti-dazzle effect at the normal sitting posture viewing angle is facilitated; light source inclination: meanwhile, the light source plate and the polarized lens are inclined downwards by 45 degrees together, so that the lens is better hidden; deep storage of light source: the light source is deeply hidden in the lamp body, and the distance between the center of the LED and the wall of the shell is 13 mm; designing black light: the shell of the light-emitting component is designed to be black, stray light transmitted to the surface of the light-emitting component is absorbed, the surface brightness of the light-emitting component is reduced, direct glare is reduced, the visual comfort is improved, the shading angle of the lamp is increased through the design, the oversized shading angle ensures that the lens and the LED cannot be seen in a conventional visual angle, and the direct glare is reduced.
2. In the invention, the polarized lens comprises a light-emitting surface and a light-entering cavity, the light-entering cavity is an inward concave cavity close to the LED, the light-emitting surface is positioned at the far end of the LED and used for emitting light rays, and the light-emitting surface and the light-entering surface are connected together through two reflecting surfaces; specifically, the optical path of the polarized lens is as follows: the light ray 1 is refracted by the first incident surface of the light-entering cavity and then emitted after being deflected by the second emergent surface of the light-emitting surface, and the emergent light ray is responsible for illuminating the vicinity of the middle area on the illuminated surface, which is approximately an area 200-400mm away from the center of the lamp; the light ray 2 is refracted by the third incident surface of the light entering cavity and then is refracted by the second emergent surface of the light emergent surface and then is emergent, and the emergent light ray is responsible for illuminating the vicinity of the far-end area on the illuminated surface, which is approximately an area 400-500mm away from the center of the lamp; the light 3 is refracted by the second incident surface of the light-entering cavity and then emitted after being deflected by the first emergent surface of the light-emitting surface, and the emergent light is responsible for illuminating the vicinity of the near-end area on the illuminated surface and is approximately an area from the center of the lamp to the center of the lamp by 200 mm; thereby achieving the effect of uniform illumination through the polarized lens.
3. In the invention, the emergent surface and the incident surface of the polarized lens are both specially designed arc-shaped curved surfaces with variable curvatures, and the direction of light rays is controlled through different curvature changes and thickness changes between the incident surface and the emergent surface, so that the characteristic of uniform illumination of the irradiated surface is achieved, and the anti-glare effect can be achieved.
4. In the invention, the black shell is provided with a plurality of sawteeth, and in order to fold the stray light back to the inside of the lamp body, the included angle of the sawteeth is designed to be 60-90 degrees, so that the stray light is folded back to the inside of the lamp body and can not be emitted, and the stray light is eliminated.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
Fig. 1 is a schematic structural view of an anti-glare lighting fixture.
Fig. 2 is a schematic view of an internal structure of an anti-glare lighting fixture.
Fig. 3 is a light path diagram of a polarizing lens in an anti-glare lighting device.
Fig. 4 is a schematic structural view of a sawtooth in an anti-glare lighting fixture.
Fig. 5 is a light distribution curvature diagram of a polarizing lens in an anti-glare lighting device.
Illustration of the drawings:
1. a housing; 2. a light exit hole; 3. mounting a plate; 4. a light source plate; 41. a light source; 5. a polarizing lens; 51. a light-emitting surface; 511. a first exit surface; 512. a second exit surface; 52. an optical input cavity; 521. a first incident surface; 522. a second incident surface; 523. a third incident surface; 6. a housing; 61. saw teeth; 7. a reflective surface.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the embodiments of the present invention, it should be noted that the terms "upper", "inner", and the like refer to orientations or positional relationships based on the orientations or positional relationships shown in the drawings or orientations or positional relationships that are conventionally arranged when the products of the present invention are used, and are used only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Referring to fig. 1 to 5, the present invention provides an anti-glare lighting fixture, including a housing 1 and a light emitting component disposed in the housing 1, where the housing 1 is a cylindrical structure, and may also be in other shapes, the housing 1 is provided with a light emitting hole 2, a mounting plate 3 is disposed in the housing 1, the light emitting component is mounted on the mounting plate 3, the light emitting component includes a light source plate 4, a polarizing lens 5 and a shell 6, the shell 6 is fixedly connected to the mounting plate 3, the shell 6 is a black shell, the light source plate 4 is disposed on the shell, the polarizing lens 5 is fixedly connected to the light source plate 4, an included angle between one side of the light source plate 4 facing the light emitting hole 2 and a horizontal plane is 45 degrees, the polarizing lens 5 includes a light emitting surface 51 and a light incident cavity 52, and the light incident cavity 52 is a concave cavity, two ends of the light emitting surface 51 are respectively connected with the light entering cavity 52 through the reflecting surfaces 7, the light entering cavity 52 is located in a space enclosed by the light emitting surface 51 and the two reflecting surfaces 7, and light emitted by the light source plate 4 is refracted by the light entering cavity 52, deflected by the light emitting surface 51 and then emitted from the light emitting hole 2.
The light incident cavity 52 includes a first incident surface 521, a second incident surface 522 and a third incident surface 523, the first incident surface 521 is located at one end of the light source 41 on the light source board 4, the second incident surface 522 is located at the other end of the light source 41 on the light source board 4, and the third incident surface 523 is located at one side of the light source 41 on the light source board 4; the first incident surface 521, the second incident surface 522 and the third incident surface 523 are all arc-shaped curved surfaces with variable curvatures; the light emitting surface 51 includes a first emitting surface 511 and a second emitting surface 512, and both the first emitting surface 511 and the second emitting surface 512 are arc-shaped curved surfaces with variable curvatures. The optical path of the polarized lens is as follows: the light ray 1 is refracted by the first incident surface of the light-entering cavity and then emitted after being deflected by the second emergent surface of the light-emitting surface, and the emergent light ray is responsible for illuminating the vicinity of the middle area on the illuminated surface, which is approximately an area 200-400mm away from the center of the lamp; the light ray 2 is refracted by the second incident surface of the light entering cavity and then is emitted after being deflected by the second emergent surface of the light emitting surface, and the emergent light ray is responsible for illuminating the vicinity of the far-end area on the illuminated surface, which is approximately an area 400-500mm away from the center of the lamp; the light 3 is refracted by the third incident surface of the light-entering cavity and then emitted after being deflected by the first emergent surface of the light-emitting surface, and the emergent light is responsible for illuminating the vicinity of the near-end area on the illuminated surface and is approximately an area from the center of the lamp to the center of the lamp by 200 mm; thereby achieving the effect of uniform illumination through the polarized lens.
A plurality of saw teeth 61 are arranged on the surface of the shell 6; the included angle of the saw teeth 61 is 60-90 degrees. The shell is black, can absorb stray light, make the illumination distribution on the illuminated surface more even, the edge illumination distribution is clearer, but because there is no absolute 100% to absorb light, so design the jagged microstructure on the black shell surface, the function is to reflect stray light, the jagged shape is as shown in fig. 4, in order to return the stray light to the lamp body inside, the included angle is angle a in fig. 4, angle a is designed to be between 60-90 degrees.
The material of the polarized lens 5 is transparent PC or transparent PMMA.
A radiator is also arranged in the shell 1. The internal temperature of the housing can be reduced, and the safety can be improved.
The working principle is as follows: in the invention, the light-emitting hole is small, and the size of the light-emitting hole on the shell is 25mm by 9 mm; and (3) reducing the height of the light outlet hole: the height of the opening on the shell from the bottom surface of the shell is 190mm, the normal sitting posture is 1.2 m, the conventional height of a desk is 0.75 m, and the height of a light-emitting surface of a lamp placed on the desk is about 0.9 m, so that the height of the light-emitting hole is reduced, and the anti-dazzle effect at the normal sitting posture viewing angle is facilitated; light source inclination: meanwhile, the light source plate and the polarized lens are inclined downwards by 45 degrees together, so that the lens is better hidden; deep storage of light source: the light source is deeply hidden in the lamp body, and the distance between the center of the LED and the wall of the shell is 13 mm; designing black light: the shell of the light-emitting component is designed to be black, stray light transmitted to the surface of the light-emitting component is absorbed, the surface brightness of the light-emitting component is reduced, direct glare is reduced, the visual comfort is improved, the shading angle of the lamp is increased through the design, the oversized shading angle ensures that a lens and an LED (shown in figure 2) cannot be seen in a conventional visual angle, and the direct glare is reduced; the polarized lens comprises a light-emitting surface and a light-entering cavity, the light-entering cavity is an inward concave cavity close to the LED, the light-emitting surface is positioned at the far end of the LED and used for emitting light rays, and the light-emitting surface and the light-entering surface are connected together through two reflecting surfaces; specifically, the optical path of the polarized lens is (as shown in fig. 3): the light ray 1 is refracted by the first incident surface of the light-entering cavity and then emitted after being deflected by the second emergent surface of the light-emitting surface, and the emergent light ray is responsible for illuminating the vicinity of the middle area on the illuminated surface, which is approximately an area 200-400mm away from the center of the lamp; the light ray 2 is refracted by the third incident surface of the light entering cavity and then is refracted by the second emergent surface of the light emergent surface and then is emergent, and the emergent light ray is responsible for illuminating the vicinity of the far-end area on the illuminated surface, which is approximately an area 400-500mm away from the center of the lamp; the light 3 is refracted by the second incident surface of the light-entering cavity and then emitted after being deflected by the first emergent surface of the light-emitting surface, and the emergent light is responsible for illuminating the vicinity of the near-end area on the illuminated surface and is approximately an area from the center of the lamp to the center of the lamp by 200 mm; thereby achieving the effect of uniform illumination through the polarized lens; the emergent surface and the incident surface of the polarized lens are both specially designed arc-shaped curved surfaces with variable curvatures, and the direction of light is controlled through different curvature changes and thickness changes between the incident surface and the emergent surface, so that the irradiated surface has the characteristic of uniform illumination, the anti-glare effect can be achieved, and the light follows the law of refraction and the law of reflection when propagating inside the polarized lens; the black shell is provided with a plurality of sawteeth, in order to fold the stray light back to the inside of the lamp body, the included angle (such as an angle A in figure 4) of the sawteeth is designed to be 60-90 degrees, so that the stray light is folded back to the inside of the lamp body and can not be emitted, and the stray light is eliminated.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.